Phonograph-reproducer.



A. F. GALL.

PHONOGRAPH REPRODUCER.

APPLICATION FILED Nov. 26. 1909.

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roma E. GA'LL, or WEST ORANGE, NEW JERSEY, Assre'NoR TO NEW JEnsEY-rA'rENr COMPANY, OF WEsu; ORANGE, NEW JERSEY, A CORPORATION or NEW JERSEY,

' PHONOGRAPH-REPRODUCER.

memes.

producers which are provided with a pair of re roducing styli adapted to track records of dii erent character, as for example, records having 100 and 200 threads per mchirespectively, said-Styli being so mounted that either.

may, by a simple manipulation, be brought into or out of operative position with respect to the record surface at will. In my invention, the styli are carried by diiferent surfaces of asingle stylus lever, the stylus lever being pivotally mounted such a manner that it may be rotated about an axis substantially parallel with the diaphragm of the reproducer, and. substantially parallel to a diametrical plane of the sound record, in

which plane is located the sound record groove which the, stylus is adapted'lqo track in order that either stylus may be brought into operative position. Preferably," the styli are carried by the top and bottom surfaces of the stylus lever, that is, 180 degrees apart, the lever being pivoted to a member which is rotatable about an axis extending longitudinally'of the lever in lugs depending from the floating weight, the tail of the lever being connected to the diaphragm in such a manner that the diaphragm will'not I be placed under undue stress during thead: 'ustment of. the lever to position the stylus. referably, sto s are provided to limit the 40 rotation of the ever during adjustment to a swing of 180 degrees; nd also, preferably, spring means are provi d stylus lever in either adjusted position. I

y invention also'comprises an improved indicating means for indicating which stylus is in operative position. The object.

of my invention is the provision of suitable means of the character above described, and

also the construction .ofr'; parts and combinations of elements more particularly described in the following specification and claimed in.

the annexedclaims. i 1

.In order that my invention maybe more fully understood, reference is hereby made Specification of Letters Patent.

' kets 3 by the ring 4, the floating weight 5 ed for holding the Patented J an. 11, 11916.

Application filed November 26, 1909. Serial No. 529,917.

v to the accompanying drawings, forming part of this specification, in which- Figure 1 is a central vertical section of a phonograph reproducer embodying my in vention, certain parts beii ig shown inside elevation. Fig. 2 is a bottom plan View of the same. Fig. 3 is a detail end view looking from the right in Fig. 1 showing the means for supporting the floating weight. Fig. 4 is a detail end view looking from the left in Fig. 1 showing one form of indicating device. Figs. 5 andfi are detail views showing modified forms of the indicating device. Fig. 7 is a side elevation of the, stylus lever showin modified connections. tothe diaphragm. ig. 8 is an end view of 7 the same looking from the left in Fig. 7. Fig. 9 is a side elevation of the stylus lever showing a modified form of stylus mounting.

-. In all of the above'figures, corresponding parts are denoted by the same reference numerals.

Referrin giolthe drawings, the reproducer shown comprises a sound box .body 1 and diaphragm 2 clamped" therein between gasbeing pivoted at 6 to the :block 7, which is supported bygthe engagg ment of screw 8 within the sound. box body 1. A stir-. rup 9 rises from the upper. surface of the tail of floating weight 5, floating weight 5 being supported when the" stylus is notin' engagement with the sound--record, from member 10 pivoted to sound box body 1 at L .,,11, member 10 extending through stirrup 9.

Membenlt) is provided with a squared end 12 adjacent pivot 11, which squared end is adapted to abut against shoulder or stop 13 attached to the sound box body 1 when the member 10 is in such a pivotal position that .the portion 14 thereof from which stirrup 9 is suspended is approximately horizontal or parallel to diaphragm'Q. Member 10, accordingly, cannot -swing below this position, although it may be moved pivotallythrough: a vertical are above this position to raise the floating weight. Member 10 is bent to extend around the end of floating weight 5, and the end 15 .thereof extends below the tail of the floating weight. The weight may be lifted to raise the stylus out of engagement with the record by upward pressure upon the'end 15 of member 10 which may be exerted by the finger or automatically by some portion of the phonograph machine, when it is desired to lift the stylus from the record. it thus not being necessary to touch the floating weight itself for such lifting. As stirrup 9 has the shape of an inverted V at its upper portion, the device is selfcentering. The structure described in this paragraph is not my invention, butas to its novel features'is the invention of Peter lVeber, and is described and claimed by him in application No. 575,861, filed August 6, 1910.

Frame 16, which pivotally supports stylus lever 17 is rotatably mounted beneath floating weight 5 in the following. manner: Lugs 18 and 19 extend downwardly from floating weight 5, and lug 19 is provided with a small screw 20 having a pointed end which acts as a center for frame 16. Spindle 21 integral with frame 16 is rotatably mounted in lug 18. Frame 16, which is thus rotatably mounted, carries a transverse pin I 22 upon which stylus lever 17 is pivoted.

surface contacting portion 23 and lower surfaces of. which are flat. this structure, the

.The stylus lever is thus mounted to oscillate in a vertical plane. It is also preferable that the stylus lever should be permitted a certain amount of oscillation" or lateral movement in a plane at right angles to this or substantially parallel to the diagram in order that the as not to interfere with the lateral swing-,-

ing of the lever. The pivot portion of the lever 23 is apertured tor'eceive pin 22. This aperture is of a diameter slightly greater than that of the preciable longitudinal movement of the lever is prevented. The materialof the lever is cut away in the vicinity of the said aperture to form V-shaped slots'25, theupper y lever is permitted to osoillate to a limited degree upon pin 22 in a plane substantially parallel to diaphragm 2.

Stylus lever 17- carries to the right of pivot 22, referring to Fig. 1, a pair of styli 26 and 27- which are mounted one on the upper and the other on the lower surface of lever 17. and which are-adapted fortrackmg sound records of different character- -through 180 degrees,

stylus may have a greater freedom in tracking the sound record. This lateral oscillation or movement may be prodrawings, the pivot por- I shown at 39, and p1n 22"whereby any ap Spindle 21 carrying thumb nut istics, as one having 100 threads per i'nch. and the other having 200 threads per inch. tapindle' 21 extends beneath floating weight 5 and is provided with a knurled nut 28 or similar n'ianipulative device which may be grasped between rotate frame 16 in its hearings to place either stylus 26 or 27 in operativeposition. Floating weight 5 is provided withavpair of stops 2-) and 30, one of which is contacted by the side portion 31 of'frame 16 when the same is turned in one direction or the other one stylus or the other being in operative provide means for holding frame 16 in position when frame 16 is in contact with either lug. Preferably, I

the fingers and rotated to either adjusted position. As shown in the drawings, this means takes the form of a spiral spring 32 which is 'attached at .one end to the hook 33 carried by the upper surface of floating weight 5 and which, passing through anopening 3% in floating weight 5,.

a pin 35 Se is attached at its other end to cured to or integral-with frame 16. -This pin 35 is mounted as shown somewhat to one side of the axis of rotation of frame 16, so that the lspring will tend to pull the mem ber 16 dow'n'into position contacting either stop 29 or 30 when it is rotated.

Stylus lever-l7 is connected. to diaphragm 2, as illustrated in Figs. 1 and 2, by means of the usual link 36 which is attached to dia-- phragm 2 in the usual manner, and which is provided at itsfother end with a hook passing through an eye ina short link 37 which is pivotallymounted on. a screw 38' screwed longitudinally into the end of stylus lever 17 opposite to the end carrying styli 26 and .27. When frame 16 is rotated through 180 degrees in adjusting either stylus into operative position, link 37 swivels upon pin 38 and diaphragm 2 is thereby relieved of strain during the eccentric movement. of the tail of lever 'i17 in its rotation. Another manner in.v which the lever 17 is given a reduced diameter, as a ring 40 is rotatably mounted upon this reduced diameter 39. Ring 40 is provided with a pair of lugs 41 at opposite points thereon,-to which lugs are secured the ends of a yoke 42 which is formed integral with link 36. The advantage of this latter construction is that as about its pivot in a the stvl us lever swings vertical plane,'the yoke mav swing about lugs 41, thus givinga more universal connection than in the first for tends beyond the depending flange of sound box 1 and may be provided with indicating means for indicating which stylus is in position to engage the sound'record. This in- 28 exed stylus lever might be connected to the dia- .phragm 13 illustrated in Figs. 7 and 8. As

,shown in these figures, the tail of stylus sition, In order, however, that the index diaphragm,

' dicating means may take the form of a plate 1. 43 secured to spindle 21 hearing suitable numerals as 2 and 4, as illustrated in Fig. 4, indicating the character of the record ,with which the stylus in operative position is adapted to coact, as a two minute record or a four minute record. In the forms illustrated in Figs. 1, 2 and 4, the index plate occupies a substantially vertical plane, and the figure legible thereon above the spindle 21 indicates which stylus is in operative ,po-

characters may be more easily read from above the machine, index plate 43 may be bent at an angle, as illustrated in Fig. 6, into the wings 44 of plate 43 carrying the index characters, or the wings of plate a3 may be bent into a horizontal plane as indicated' at 45 in Fig. 5.

In Fig. 9 I have illustrated a cylindrical stylus having bearing surfaces 26- and 27 on the opposite ends thereof, adapted to tra'cksound records of different characters, as records having 200 and 100 threads to the inch respectively. This stylus may" be formed of a single sapphire or of other suitable material, and secured in position in a hole extending through the stylus lever 17 with one stylus bearing surface above the upper surface of the-lever and the other below the lower surface of the lever.

It is obvious that my invention might be applied to a phonograph reproducer employing vibratory means other than a simple as that indicated in the drawings at 2, and also that various other changes'in the construction of the device might bemade without departing from the spirit of my invention.

Having now described my invention, what I claim and-desire to protect by Letters Patent is as follows:

1. In a device of the class described, the

- combination with vibratory means and a nections between said vibratory means and floating weight, of a member rotatably secured to said weight, the axis of rotation of said member being substantially parallel to a diametrical plane of the record in which is located the sound record groove and also approximately parallel to said vibratory means, a stylus lever carried by said member, and connections betweenlsaid vibratory means and said lever, substantially as described.

2. In a device of the" class described, the combination with vibratory means and a floating weight, of a stylus lever pivotally connected to said weight, a stylus projecting from each of two surfaces of said lever, consaid lever, means carried by said floating weight for rotating the pivot of saidlever about an axis substantially parallel to the normal position of said vibratory means to rotate said lever and place either stylus in operative position, and means'for resisting rotation of sald second named means away from the position corresponding with the combination with vibratory means and a floating weight, of a member rotatably secured to said weight, the axis of rotation of said member being substantially parallel to a diametrical plane of the record in which is located the soundrecord groove and also approximately parallel to said vibratory means, a stylus lever carried by said member, styli projecting from different faces of said lever, connections between one extremity of said lever and said vibratory means, and means resisting rotation of said member away from the position of engagement of either of said styli with the record,

substantially as described.

5. In a device of the class described, in

combination, a stylus lever, styli projecting from opposite faces thereof, a member in which said lever is pivoted, supporting means in which said member is rotatably mounted, the axis of rotation 'of said memher being substantially parallel to a diametrical plane of the record in which is located the record'groove, stops on said-supporting means adapted to co-act with said member in its rotation, and spring means to hold said member in engagement with either of said stops, substantially as described.

6. In a device of the class described, in combination, a stylus lever, a plurality of styli projecting therefrom, a member in which said lever is pivoted, supporting means in which said member is rotatably mounted, vibratory means, a link connected thereto, and a member connected to one extremity-of said lever and to said link and movable relatively to said lever about an axis extending longitudinally with respect to the axis of rotation of said first named member, substantially as described.

In a device of the class described, the combination with vibratory means and a floating weight, of a member secured to said weight and revoluble about an axis substan tially parallel to said vibratory means, a lever pivoted to said member, styli projecting from said lever, connections between said vibratory means and one extremity of the said lever, and means including a shaft isa .member; means connecting one end of said lever with said diaphragm, but leaving the former free to rotate \rlth said member; and

a two reproducing styli borne by the other contact with a record indifferent axial positions of said lever, one of said styli being 15 adapted for playing on one kind of record and the other on a diflerent kind, substantially as described.

This specification signed and witnessed this 22d day of November, 1909.

ADOLPH F. GALL. Witnesses:

DYER SMITH,

JOHN M. CANFIELD.

Gopies of this patent may be obtained for five cents eac'h, by addressing the Commissioner of Patents,-

. Washington, D. 0. q 

